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-rw-r--r--include/sys/param.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sys/param.h b/include/sys/param.h
index 906a0a230..511c2ae1e 100644
--- a/include/sys/param.h
+++ b/include/sys/param.h
@@ -22,6 +22,9 @@
#define NR_FILE 32
#endif
+/* Number of Bits per BYte */
+#define NBBY CHAR_BIT
+
/* Bit map related macros. */
#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))